.index-app{
    width: 70%;
    margin: 50px auto ;
}

.el-header,
.el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
    margin: 10px 0px ;
}

.el-aside {
    background-color: #D3DCE6;
    color: #333;
    /* text-align: center; */
    /* line-height: 200px; */
    margin-right: 10px;
}

.el-main {
    background-color: #E9EEF3;
    color: #333;
    /* text-align: center; */
    /* line-height: 160px; */
}

body>.el-container {
    margin-bottom: 40px;
}

.avatar-box{
    text-align: center;
}

.el-menu-item .el-link{
    width: 100%;
    justify-content:flex-start;
}
.login-app .login-box{
    width: 400px ;
}


/*SC*/

.sc-container{
    height: 70vh;
    overflow: hidden scroll;
    /*display: flex;*/
}

/* Mylecture */

/* lecture-container */
.lecture-container{
    height: 70vh;
    overflow: hidden scroll;
    display: flex;
    flex-wrap: wrap;
    /* justify-content: flex-start; */
    /* background-color: rgb(186, 197, 219); */
}

/* lecture-item */
.lecture-item{
    background-color: white;
    border: 1px solid #afcff6;
    border-radius: 5px;
    width: 220px;
    height: 150px;
    margin: 10px;
    transition: .2s;
    text-align: center;
    overflow: hidden;
}
.lecture-item >h4{
    color: lightslategray;
}
.lecture-item>span{
    font-size: 12px;
}
.lecture-item > .btn-group{
    /* display: none; */
    transform: translateY(50px);
    transition: .2s;
}

.lecture-item:hover {
    box-shadow: 5px 5px 10px #afcff6;
}
.lecture-item:hover .btn-group {
    transform: translateY(0);
}
.red{
    color: red;
}